10:10 a.m. UPDATE: They did it! Philae landed on Comet 67P. Amazing. ORIGINAL ENTRY: Today’s the big day. This morning is when the European Space Agency will try to land its Philae spacecraft on the surface of a comet. Here’s a livestream of the event: It’s the first time humans have ever attempted a soft landing […] …

While you were sleeping last night the European Space Agency maneuvered its Rosetta spacecraft to within 60 miles of Comet 67P. The spacecraft and comet are about 250 million miles from Earth, half way between the orbits of Jupiter and Mars, rushing towards the inner Solar System at about 35,000 mph. As the spacecraft made […] …